Improvement in plows



POMEROY & HUDSON.

Rotary Cultivator.

Patented June 12 1860.

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N.PETERS, PHOTO UTHQGRAPHER ASH NGTQN D C UNITED STATES PATENT OFF-ICE.

H. A. G. POMEROY, OF PROVIDENCE, RHODE ISLAND, AND R. F. HUDSON, OF HARTFORD, CONNECTICUT.

IMPROVEMENT IN PLOWS.

Specification forming part of Letters Patent No. 28,687, dated June 12, 1 860.

To all whom it may concern: 7

Be it known that we, H. A. G. POMEROY, of Providence, Rhode Island, and R. F. HUD- SON, of Hartford, Connecticut, have invented certain new and useful Improvements in Plowing-Machines; and we do hereby declare that the following is a full and exact description thereof, reference being had to the accom panying drawings, and to the letters ofrefereuce marked thereon.

Our invention relates to that class of plows in which a series of rotating plows or cutters is employed, driven bypower, (either of the machine carrying wheels or of steam-engiuc;) and our invention has for its objects a simple machine which shall perfectly and economically turn the furrow and break up the soil-in one and the same operation; and to these ends our invention consists in the employment of a series of peculiarly-constructed cutters arranged on shafts about parallel and in the same plane, and driven by the driving-wheels of the apparatus, (or by other'motive power carried by the appparatus,) and in so constructing and arranging the whole that thecutters may be made to run more or less below the surface, as desired,.or thrown entirely out of operation.

To enable those skilled ,in the art to make and use our invention, we will now proceed to describe the operation and construction of our improved machine, referring by letters to the accompanying drawings, forming part of this specification, and in which Figure 1 represents an isometrical perspective of our improved apparatus. Fig. 2 represents a vertical longitudinal section through the center of same. Fig. 3 represents aback elevation and Fig. 4 represents a similar (partial) section to Fig. 2, but with the cutters thrown down into position for use.

Similar letters denote the same parts of th machine in the different views.

AA are the carrying and driving wheels of the machine, which carry a suitable frame, D, by means of short axles or stud-pieces n, the shaft portions of which run through the hubs of said wheels.

Near the forward end of the frame D is arranged, in suitable hearings or boxes, S S, a shaft, I, running at right angles to the path of motion of the machine, on one end of which shaft is arranged a spur-pinion, M, which of the cutter-shafts H H H and drives the two I pinions h and a, each of which is fast on one of the outside cutter-shafts H. One of the pinions, 71., is made with its face somewhat wider than the face of the gear B, so that while it meshes into and drives an intermediate pinion, m, on a stud, m (see Fig. 3,) which pinion m drives a pinion, 1', which is fast onto and rotates the middle shaft, H, on which gear B runs loosely.

The shafts H H H are arrangedabout parallel to each other and to the line of motion of the machine, and are supported by and run in suitable bear-in gs formed in the cross-beamsaa.

On the rear end of each of the shafts H is a peculiarly-formed plow or-cutter, 0, formed of four curved and radiating vanes, as illustrated at Figs. 1, 2, and 3, and each cutter-shaft should revolve in an opposite direction to that in which the one adjacent to it rotates to avoid clogging.

The whole apparatus is illustrated as being supported on two wheels, from one of which the power for driving the plow-shafts is derived. The object of such an arrangement is to allow of the rear of the machine being elevated or depressed at pleasure to vary the depth of cut or run the plows entirely out of the ground. the apparatus must be varied in construction, but in all instances the cutter-shafts and their attachments are to be hung in an oscillating frame, D, in such manner that the rear ends of the shafts H may be elevated or depressed at pleasure.

It will be seen that by our improved apparatus the furrow may be out. to any required depth, and will be simultaneously turned up When steam-power is employed and thoroughly broken or disintegrated, while the machine is simple and durable in its con-- v struction.

4 and operates as hereinbefore described, for the purpose set forth.

In testimony whereof we have hereunto set our hands and affixed our seals this 19th day of December, 1859.

H A. e. POMEROY. L. s.] n. F. HUDSON. L. s]

Witnesses:

GEO. W. BRIGGS, B. 0. Room, 4 (mos; J. VAIL, 1 WM. B. SMITH. 

